Science

Monday, 20 April 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Earth
The Earth's atmosphere weighs approximately 5.15 trillion tons.
As much as 75 percent of the atmosphere is at an altitude of less than 11 kilometers. With each addi ...
lava
Lava can take many different forms.
Common forms are aa, pahoehoe and pillow lava.
Cosmos
The Solar System is located at a distance of 28.000 light years from the center of the Milky Way.
It orbits around the galactic center of gravity at a speed of 268 km/s. It takes about 230 million y ...
Moon
The density of the Moon is on average 3346,4 kg/m3.
It is therefore the second densest moon in the Solar System, second only to the moon Io.
Amber
The English word amber derives from the Arabic anbar.
Its ancient names(electrum in Latin and ēlektron in Ancient Greek) are derived from the Ancient Greek word ēlektōr, which means "shining sun".
Large Magellanic Cloud
The next description of the galaxy appeared in Amerigo Vespucci's writings on his third expedition. He observed the object in the years 1503 - 1504.
Milky Way
Although not every galaxy has a supermassive black hole at its center, there is one in the center of the Milky Way.
This region, called Sagittarius A*, is a very bright and compact radio source with a mass of 3.7 million solar masses and a diameter of approximately 44 million kilometers.
Cosmos
The development of the universe can be divided into five stages.
The very early universe lasted only a picosecond, during which time the laws of physics that we know today had not yet developed.
Silver
Later, pure silver coins were produced.
The British pound was initially worth 1 pound of 925 silver jewelry.
Brain
The human brain is made of two hemispheres separated by a longitudinal furrow
Each of the hemispheres is divided into five lobes: frontal, parietal, temporal, occipital, and marginal.